Sony is handling this on a case by case basis, and if you read the comments they sent you carefully, that’s all they’re actually telling you.
There’s no real way of knowing what percentage of models this is affecting without contracting an independent study through a large data collection firm or magically getting that data from Sony somehow. It’s probably not a huge number, or it would have been caught in in-house testing and not sent out the door. However, normally you’d just cover something like this in warranty and it would never even become something that large numbers of customers would take to the internet to complain about.
In a matter of months, the online comment narrative on this headphone changed from “It’s a wonderful product” to “it might break!” and so far, Sony hasn’t done much to change that.
All I can really say is that my personal pair didn’t have this issue in the four months I owned it, but I’ve heard from several people above who did have this issue as you can see. I’ve also heard several anecdotal reports of people having a better experience overall with Bose’s customer support.
I’ve never had to interact with either company’s support departments, so anecdotes are all I’ve got.
If you buy them from a place with a good return policy you can check them out for yourself and see what you think. They’re still a great audio product in spite of this. Worry isn’t fun though. So no one would blame you for either waiting for a revision or going for one of the million other pairs out there.
Thanks for reading!